#include "STM8S103k.h"
#define BIAS 0x52 //0b1000 0101 0010 1/3duty 4com
#define SYSDIS 0X00 //0b1000 0000 0000 關(guān)振系統(tǒng)蕩器和LCD偏壓發(fā)生器
#define SYSEN 0X02 //0b1000 0000 0010 打開系統(tǒng)振蕩器
#define LCDOFF 0X04 //0b1000 0000 0100 關(guān)LCD偏壓
#define LCDON 0X06 //0b1000 0000 0110 打開LCD偏壓
#define XTAL 0x28 //0b1000 0010 1000 外部接時鐘
#define RC256 0X30 //0b1000 0011 0000 內(nèi)部時鐘
#define TONEON 0X12 //0b1000 0001 0010 打開聲音輸出
#define TONEOFF 0X10 //0b1000 0001 0000 關(guān)閉聲音輸出
#define WDTDIS 0X0A //0b1000 0000 1010 禁止看門狗
//HT1621控制位（液晶模塊接口定義，根據(jù)自已的需要更改）
_Bool HT_WR @PB_ODR:5;//WR
_Bool HT_DAT @PB_ODR:6;//DAT
_Bool HT_CS @PB_ODR:7;//CS
_Bool HT_CS1 @PB_ODR:4;//CS
//-----------------------------------------------------------------------------------------
//函數(shù)名稱：DelayUS()
//功 能：延時子程序
//-----------------------------------------------------------------------------------------
//-----------------------------------------------------------------------------------------
//函數(shù)名稱：DelayMS()
//功 能：延時子程序
//-----------------------------------------------------------------------------------------
void DelayMS(unsigned int ms)//
{
unsigned int i;
while(ms != 0)
{
for(i=0;i<250;i++);
for(i=0;i<250;i++);
for(i=0;i<60;i++);
ms--;
}
}
void DelayUS(unsigned int us)
{
while(us != 0)
{
_asm("nop");
_asm("nop");
_asm("nop");
_asm("nop");
_asm("nop");
_asm("nop");
_asm("nop");
_asm("nop");
_asm("nop");
us--;
}
}
void SendBitToHT1621(unsigned char nbit,unsigned char n)
{
unsigned char i;
for(i=0;i
{
HT_WR=0;//PB_ODR_ODR5=0;//CLS_HT_WR;
if((nbit & 0x80))//==0x80)
HT_DAT=1;//SET_HT_DAT;
else
HT_DAT=0;//CLS_HT_DAT;
DelayMS(5);
HT_WR=1;//PB_ODR_ODR5=0;//SET_HT_WR;
DelayMS(5);
nbit<<1;
}
}
void write_com(unsigned char comcode)
{
HT_CS=0;//選通ht1621
DelayMS(5);
SendBitToHT1621(0x80,4);
SendBitToHT1621(comcode,8);
DelayMS(5);
HT_CS=1;//
DelayMS(5);
}
void init_lcd(void)
{
write_com(SYSEN);
write_com(RC256);
write_com(BIAS);
write_com(LCDON);
}
void seg_display(unsigned char col,unsigned char pag)
{
pag<<=2;
HT_CS=0;//PB_ODR_ODR4=0;//CLS_HT_CS;
DelayMS(5);
SendBitToHT1621(0xA0,3);//發(fā)送寫數(shù)據(jù)命令101
SendBitToHT1621(pag,6);//發(fā)送Y軸數(shù)據(jù)
SendBitToHT1621(col,4);//發(fā)送X軸數(shù)據(jù)
HT_CS=1;//PB_ODR_ODR4=1;//SET_HT_CS;
DelayMS(5);
}
void screen_clear(void)
{
unsigned char i;
unsigned char y=0;
for(i=0;i<32;i++)
{
seg_display(0x00,y);
y=y+1;
}
}
void port_init(void)
{
PB_DDR = 0xFF;//0x80;
PB_CR1 = 0xFF;//0x80;
PB_CR2 = 0x00;
//PD_DDR = 0x1c;
//PD_CR1 = 0x1c;
//PD_CR2 = 0x0;
PE_DDR= 0x20;//PE5---output
PE_CR1= 0x20;
PE_CR2=0x00;
}
void Init0(void)
{
CLK_ICKR |= 0x01; //打開內(nèi)部高速RC
CLK_CKDIVR = 0x10; //HSI--4MHZ
}
//-----------------------------------------------------------------------------------------
//函數(shù)名稱：Ht1621Wr_Data()
//功 能：寫數(shù)據(jù)函數(shù),cnt為傳送數(shù)據(jù)位數(shù),數(shù)據(jù)傳送為低位在前
//-----------------------------------------------------------------------------------------
void Ht1621Wr_Data(uchar Data,uchar cnt)
{
uchar i;
for (i=0;i
{
HT_WR=0;//
DelayMS(5);
if((Data & 0x80)==0x80)
{
HT_DAT=1;//
}
else
{
HT_DAT=0;//
}
HT_WR=1;//
DelayMS(5);
Data<<=1;
}
}
//-----------------------------------------------------------------------------------------
//函數(shù)名稱：void Ht1621WrOneData(uchar Addr,uchar Data)
//功能描述: HT1621在指定地址寫入數(shù)據(jù)函數(shù)
//參數(shù)說明：Addr為寫入初始地址，Data為寫入數(shù)據(jù)
//說 明：因為HT1621的數(shù)據(jù)位4位，所以實際寫入數(shù)據(jù)為參數(shù)的后4位
//-----------------------------------------------------------------------------------------
void Ht1621WrOneData(uchar Addr,uchar Data)
{
HT_CS=0;//CLS_HT_CS; //HT1621_CS=0;
DelayMS(5);
Ht1621Wr_Data(0xa0,3); //寫入數(shù)據(jù)標志101
Ht1621Wr_Data(Addr<<2,6); //寫入地址數(shù)據(jù)
Ht1621Wr_Data(Data<<4,4); //寫入數(shù)據(jù)
HT_CS=1;//SET_HT_CS;//HT1621_CS=1;
}
//-----------------------------------------------------------------------------------------
//函數(shù)名稱：void Ht1621WrAllData()
//功能描述: HT1621連續(xù)寫入方式函數(shù)
//說 明：HT1621的數(shù)據(jù)位4位，此處每次數(shù)據(jù)為8位，寫入數(shù)據(jù)總數(shù)按8位計算
//-----------------------------------------------------------------------------------------
void Ht1621WrAllData(void)
{
uchar i;
HT_CS=0;//CLS_HT_CS;//HT1621_CS=0;
Ht1621Wr_Data(0xa0,3); //寫入數(shù)據(jù)標志101
Ht1621Wr_Data(0x00<<2,6); //寫入地址數(shù)據(jù)
for (i=0;i<16;i++)
{
Ht1621Wr_Data(0x00,8);//0x00,8); //寫入數(shù)據(jù)
}
HT_CS=1;//SET_HT_CS;//HT1621_CS=1;
}
//-----------------------------------------------------------------------------------------
//函數(shù)名稱：void Ht1621WrCmd(uchar Cmd)
//功能描述: HT1621命令寫入函數(shù)
//參數(shù)說明：Cmd為寫入命令數(shù)據(jù)
//說 明：寫入命令標識位100
//-----------------------------------------------------------------------------------------
void Ht1621WrCmd(uchar Cmd)
{
HT_CS=0;//CLS_HT_CS;//HT1621_CS=0;
DelayMS(5);
Ht1621Wr_Data(0x80,4); //寫入命令標志100
Ht1621Wr_Data(Cmd,8); //寫入命令數(shù)據(jù)
HT_CS=1;//SET_HT_CS;//HT1621_CS=1;
}
//-----------------------------------------------------------------------------------------
//函數(shù)名稱：void Ht1621_Init(void)
//功能描述: HT1621初始化
//說 明：初始化后，液晶屏所有字段均顯示
//-----------------------------------------------------------------------------------------
void Ht1621_Init(void)
{
HT_CS=1;//
HT_WR=1;//
HT_DAT=1;//
DelayMS(20); //延時使LCD工作電壓穩(wěn)定
Ht1621WrCmd(BIAS);
Ht1621WrCmd(RC256); //使用內(nèi)部振蕩器
Ht1621WrCmd(SYSDIS);
Ht1621WrCmd(WDTDIS);
Ht1621WrCmd(SYSEN);
Ht1621WrCmd(LCDON);
}
void main()
{
uchar i=0x1d;
//初始化子程序
CLK_ICKR |= 0x01; //打開內(nèi)部高速RC
CLK_CKDIVR = 0x18; //fcpu=2M fmaster=2M
// Init0(); //初始化子程序
port_init();
Ht1621_Init(); //上電初始化LCD
DelayMS(50); //延時一段時間
Ht1621WrAllData();
while(1)
{
//seg_display(0x30,0x44);
Ht1621WrOneData(i-16,0x06);//1
Ht1621WrOneData(i-15,0x0e);Ht1621WrOneData(i-14,0x03);//2
Ht1621WrOneData(i-13,0x0a);Ht1621WrOneData(i-12,0x07);//3
Ht1621WrOneData(i-11,0x03);Ht1621WrOneData(i-10,0x06);//4
Ht1621WrOneData(i-9,0x0b);Ht1621WrOneData(i-8,0x05);//5
Ht1621WrOneData(i-7,0x0f);Ht1621WrOneData(i-6,0x05);//6
Ht1621WrOneData(i-5,0x00);Ht1621WrOneData(i-4,0x07);//7
Ht1621WrOneData(i-3,0x0f);Ht1621WrOneData(i-2,0x07);//8
Ht1621WrOneData(i-1,0x0b);Ht1621WrOneData(i,0x07);//9
i=i-2;
if(i<16)
{
i = 0x21;
}
DelayMS(500);
}
}
不知道為什么就是不亮。哎。繼續(xù)找原因吧。
萬般無奈后，把頻率設(shè)成最低，CLK_CKDIVR = 0x1f; LCD居然亮了。
看來主要修改一下頻率就可以：
